William II (German: Wilhelm Karl Paul Heinrich Friedrich; 25 February 1848 – 2 October 1921) was the last King of Württemberg. He ruled from 6 October 1891 until the dissolution of the kingdom on 30 November 1918. He was the last German ruler to abdicate in the wake of the November Revolution of 1918.

William's father died in 1870, but his mother lived to see him seated on the throne of Württemberg. In 1891, William succeeded his childless maternal uncle, King Charles I (1823–1891) and became King of Württemberg. This was not, as it may seem, a departure from the Salic law which governed succession in the German states; his claim to the throne came because he was the nearest agnatic heir of his uncle, as the senior male-line descendant of Frederick I of Württemberg through his younger son Prince Paul.

King William became a Generalfeldmarschall during World War I. In 1918, he was deposed from the throne along with the other German rulers. King William finally abdicated on 30 November 1918,[1] ending over 800 years of the House of Württemberg rule. He died in 1921 at Bebenhausen.

On 15 February 1877 at Arolsen he married Princess Marie of Waldeck and Pyrmont (1857–1882). They had three children:

Princess Pauline of Württemberg (19 December 1877 – 7 May 1965); married in 1898 William Frederick, Prince of Wied (1872–1945), and had issue.

Prince Ulrich of Württemberg (28 July 1880 – 28 December 1880), died in infancy

A stillborn daughter (24 April 1882)

Marie died on 30 April 1882 in Stuttgart, from complications resulting from the birth of their third child. William, already depressed by the death of his only son, is said never to have recovered from this blow.

Nevertheless, he was King and it was his duty to secure the succession. On 8 April 1886, at Bückeburg, he married Princess Charlotte of Schaumburg-Lippe (1864–1946). They had no children.